Jamb Chemistry Past Questions and Answers

Question 671:

• JAMB 1990

Use the above graph above to answer this question . CH₃-C = CH \(\frac{Na}{liq NH_3}\)> P, Compound P, in the above reaction, is

A. A
B. B
C. C
D. D

Question 672:

• JAMB 1990

The above reaction is an example of

A. A displacement reaction
B. A neutralization reaction
C. An elimination reaction
D. Saponification

Question 673:

• JAMB 1990

Select the right answer from the structure above.Which of the following compounds represents the polymerization product of ethyne?

A. A
B. B
C. C
D. D

Question 674:

• JAMB 1991

Which of the following can be obtained by fractional distillation?

A. Nitrogen from liquid air
B. Sodium chloride from sea water
C. Iodine from a solution of Iondine in carbon tetrachloride
D. Sulphur from a solution of sulphur incarbon disulphide

Question 675:

• JAMB 1991

Which of the following can be obtained by fractional distillation?

A. Nitrogen from liquid air
B. Sodium chloride from sea water
C. Iodine from a solution of Iondine in carbon tetrachloride
D. Sulphur from a solution of sulphur incarbon disulphide